Answer:
I disagree there are definetly more things that can up a country's GDP than killing off animals that are helpless and important to life itself there is no need be continously killing trees and destroying habitats. You can start more businesses or even try to find another source of GDP. But the simple truth is that it is wrong and unnessecary
Explanation:
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Plant cells have some organelles that animal cells do not. Check all organelles that ONLY plant cells have.
A
chloroplast
B
nucleus
C
cell membrane
D
cytoplasm
E
cell wall
F
mitochondria
Answer: Plant cells only have chloroplast and a cell wall. Which is A and E.
24. Name two types of pathways that help a body maintain homeostasis, and an example of each.
B
I
U
Font Family
Answer:
See the answer below
Explanation:
Homeostasis refers to the maintenance of relatively constant internal body processes. This is done in two ways
Negative feedbacksPositive feedbacksNegative feedback returns body processes back to normal after the process has been breached. An example is when the body temperature becomes too high or too low. At too high temperature, vasodilation of the skin's blood vessels occurs and more heat is lost to the surrounding from the skin, sweat is also produced by sweat glands and evaporation of the seat causes cooling. At too low temperature, vasoconstriction occurs leading to the conservation of more heat. The muscles also shake to generate more body heat
Positive feedback ensures that a breach of body processes reaches completion. An example is when a pregnant woman starts laboring. The increase in the amount of oxytocin in the blood leads to the contraction of the uterus consequently leading to the opening of the cervix. More and more oxytocin leads to more frequent and stronger contraction of the uterus untill the baby is born.
what features are environmental?
Answer:
Temperature, food, pollutants, population density, light and sound
Measurement of overall change in position.
Answer:
Velocity (Rate of change of position)Velocity is a vector quantity that is defined as the rate of change of position of an object with respect to a frame of reference with respect to time. Velocity is equivalent to the speed of the object along with the direction of motion.Hope this is fine for youAnswer:Displacement
Explanation:Displacement is the change in position of an object. The SI unit for displacement is the meter. Displacement has direction as well as magnitude. Distance traveled is the total length of the path traveled between two positions.
This process removes hunks of DNA and replaces them with new ones to help people
Answer:
Gene editing
Explanation:
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The cells in your body need nutrients and other materials to stay alive. To be used by your cells, the materials must be
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This is a picture of step 1 of protein synthesis. What happens in this step?
A. DNA is copied and then the new DNA strand leaves the nucleus and goes to the ribosome
B. DNA is copied to mRNA. The mRNA then leaves the nucleus and goes to the ribosome
C. RNA is copied and then goes to the nucleus tobring the code to the DNA
Explain the difference between homology and analogy using a wolf, a whale, and a shark:
Answer:
Explanation:
Analogy refers to traits or structures like body shapes, fins which evolved independently that are similar in organisms that are not related by the same common ancestor. For example dolphins and shark have similar body structures like fins but they are unrelated. Whale and shark too. Whales are mammals, sharks are fish.
Homology refers to traits or structures
posses by organisms that are related by common ancestors. Example wolf and whales.....they are both mammals.
How easy was it to sort finches by song?
what's an example of a stable element
Answer:
All the noble gases in group 18 of the periodic table are stable in nature because they have complete octet configuration.
they are:
Helium (He)Neon (Ne)Argon (Ar)krypton ( kr )radon Xenonglad to help you...
Review the Protein to Trait Example. How did the differences in proteins lead to different traits for this feature?
Answer:
Proteins are responsible for shaping and growth of an organism.
Explanation:
The differences in proteins lead to different in traits because it is the protein that determines the trait. The gene's sequence is like language that instructs cell to manufacture a particular protein that is necessary for the growth and development of the organism. These proteins shaped the structure of organisms so we can say that difference in traits occur due to difference in their proteins.
In pea plants, yellow seeds are dominant over green seeds. What would be the
expected genotypic ratio in a cross between a plant with green seeds & a plant that
is heterozygous for yellow seed color?
A. 1:1
B. 1:3
C. 1:2:1
D. 4:1
The expected genotype ratio is 1:3.
The genotype of an organism is the sum total of the gens that the organism received from its parents. The genotype determines the traits of an organism (phenotype).
Let the dominant gene be R and the recessive gene be r then we have a cross between RR and Rr. The expected genotype ratio is 1:3.
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What is the function of the leaves of a plant?
A: to absorb food
B: to absorb light
C: to produce seeds
D:to produce flowers
Panda populations are adapted to live in which kind of habitat?
O cherry forests
O ginkgo forests
bamboo forests
rain forest
Answer:
bamboo forests
Explanation:
Since bamboo forest is the most suitable habitat for a panda to spend their life. They need cool, wet bamboo forests for their home.
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Answer:
Its (C) (bamboo forests)
Explanation:
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A blind student runs his fingers along a page of
braille. Another student reads a page printed in a
textbook. Both students are able to obtain and
process the information most directly as a result of
the activities of the.
Which of the following is a reason a cell may divide:
A- The cell has become damaged
B- The cell wants to divide
C- Both a and b
D- Neither a nor b
Compact Bone is hard and dense but, it is not solid. It is filled with holes and has small canals for blood vessels and nerves.
True
or
not?
The compact bone is hard and dense, but it is not solid; it is filled with holes and has small canals for blood vessels and nerves, which is a true fact as the compact bone is one of the dense bones present in the body.
What is the significance of compact bone?Compact bone is a dense, hard bone tissue that provides structural support and protection to the body, and it is also involved in the storage of minerals, such as calcium, which is important for the strength and density of bones. Haversian canals are present in the compact bone and contain blood vessels, nerves, and other tissues that support the bone.
Hence, compact bone is hard and dense, but it is not solid; it is filled with holes and has small canals for blood vessels and nerves, which is a true fact as the compact bone is one of the dense bones present in the body.
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Who was similar to the cheddar man?
all Nucleotide elements
Answer:
The phosphate groups allow the nucleotides to link together, creating the sugar-phosphate backbone of the nucleic acid while the nitrogenous bases provide the letters of the genetic alphabet. These components of nucleic acids are constructed from five elements: carbon, hydrogen, oxygen, nitrogen, and phosphorous.
Explanation:
TRUE or FALSE?
All of the carbon in existence is cantinually recycled in the carbon cycle.
False
True
Answer:
The correct answer is true.
Answer: B. True
Reason:
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If a student tested the bubbles collected in the test tube what would they find they are made of and how do you know?
Hello. This question is incomplete. The full question is:
A student prepared two beakers with identical sprigs of a water plant as shown below. She placed Beaker A in the shade and the Beaker B beside a fluorescent lamp. She then systematically changed the distance from the beaker to the lamp. She counted the bubbles given off by the plants in each beaker.
If the student later tested the bubbles collected in the test tube, What would she find they are made of?
Answer:
oxygen
Explanation:
The bubbles are oxygen and we can say that because this is the gas that plants release through photosynthesis. In this case, we can also confirm that the plant that was exposed to fluorescent light, showed more bubbles than the other plant, since the light allowed the photosynthetic rate of this plant to be higher, releasing more oxygen to the environment.
ACTIVITY 2: NOW I KNOW!
Directions: Complete the paragraph using the word pool provided. Write the word in your long pad.
MIRROR
OBJECTIVES
PENCIL
MAGNIFICATION
EYEPIECE
INVERTED
GLASS SLIDE
COVER SLIP
10X
FIELD OF VIEW
40X
UPWARD
The microscope is an essential tool in Biology. It provides us with important data on specimens being examined.
The (1) has various magnification (5x, 10x, 12.5x, 15x) which attaches to the body tube. On the other hand, the
revolving nose piece are attached by (2) with 10x, 40x and 100x magnifications.
In preparing a wet mount, place the specimen in a (3)
add a drop of water and cover it with a (4)
Tap the cover slip with the eraser-end of a (5)
to reduce the formation of the bubbles.
Look at the eyepiece and adjust the (6) to find the (7) of the microscope which is the bright circle
of light. The (8)
of specimen is computed by multiplying the magnification of the Eyepiece with the
magnification of the Objectives. If the eyepiece has a magnification of 10x and the Objective has (9)
then
the specimen's magnification is 400x. In addition, turning the stage knob upward will result to moving the specimen as
seen in the microscope downward while turning the stage knob to the left will move the specimen to the right as seen
under the microscope. Finally, the specimen when seen under the microscope appears (10)
Answer:
The correct answer would be -
1.) objectives
2.) eyepiece
3.) glass slide
4.) coverslip
5.) pencil
6.) mirror
7.) field of view
8.) magnification
9.) 40x
10.) inverted
Explanation:
Objectives of the microscope have magnification (5x, 10x, 12.5x, 15x) which attaches to the body tube. The nosepiece is found between the stage and the eyepiece or ocular lens. Glass slide is the slide where a specimen is placed for the study and covered with a coverslip, bubble should be avoided while placing the coverslip.
Mirrors need to adjust to seeing the field of view by adjusting the light. After computing the magnification there would be a final image of the specimen that would be inverted due to the two lens used here.
How could an asteroid impact have led to the extinction of dinosaurs?
Answer:
The asteroid crashed into the earth and made some water bodies violent
it is said that the asteroid was super huge and was capable of causing volcanoes, tsunamis, etc which took place all over the earth and extincted dinosours. But it is a little surprising that crocodiles who were also found at that time survived all this
Answer:
Probably the asteroid caused natural calamities
S. If cells of onion peel and RBC are separately kept in hypotonic solution, what will take place? Explain the reason for your answer
Answer:
Well for the onion peel, since its a plant cell...it shall gain water from the solution as it has a lower water potentail,and hence increase in size, becoming turgid and tight, with the cell wall exerting pressure to stop it from bursting.
For the RBC, its an animal cell, and shall also gain water, but since there is no cell wall to support it, it shall soon gain so much water that it shall burst becuase of the pressure, through lysis, and shall die.
Note, the plant cell does not die.
What type of evolutionary mechanism did this story show?
Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.
This story showed an example of convergent evolution. Convergent evolution is the process whereby organisms that are not closely related independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.
What is in the story ?In this story, the two species of birds, the crows and the jays, evolved to look similar as a result of living in the same environment and competing for the same resources.
The two species evolved to look similar in order to blend in with their environment, making it difficult for predators to distinguish them from one another. This allowed them to survive and thrive in the same environment.
Therefore, This example of convergent evolution is a perfect example of how species can evolve to look similar in order to survive in the same environment. It also shows how competition for resources can drive species to evolve similar traits in order to survive.
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More than 90% of measles infections occurs in children under ____ years old.
Answer: More than 90% of measles infections occurs in children under 15 years old.
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Which characteristics are common to most salamanders? Check all that apply.
They undergo internal fertilization.
They lose their tails as adults.
They have wet, moist skin.
They have long, strong legs.
They begin life with gills.
Answer:
c, d, and a
Explanation:
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Answer:
They undergo internal fertilization; they have wet, moist skin; they begin life with gills
Explanation:
Cells require a structure that regulates the transfer of material in and out of the cell. This structure is the –
Cells require a structure that regulates the transfer of material in and out of the cell, and this structure is the cell plasma membrane, as substances can go in or out of the cell such as oxygen, water, etc.
What is the purpose of the cell plasma membrane?The cell plasma membrane's purpose is to protect the cell from outside materials such as matrix proteins, pathogens, and so on, as well as to give the cell the proper shape and size, and at the same time it consists of many channels, pumps, etc. Through the channels, the substance can flow in and out of the cell plasma membrane, and the energy may or may not be needed for the movement.
Hence, cells require a structure that regulates the transfer of material in and out of the cell, and this structure is the cell plasma membrane, as substances can go in or out of the cell such as oxygen, water, etc.
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Many fungi play a critical environmental role as _______, breaking down organic material into nutrients for the soil and other organisms.
3. Which of the following types of molecules is found in genetic material?
A.cellulose
B.enzymes
C.lipids
D.nucleic acid
Answer:
D. Nucleic acid
Explanation:
There are two types: DNA and RNA
DNA stands for Deoxyribonucleic acid
RNA stands for ribonucleic acid